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<h1 class="sectionedit1" id="radar_targets">Radar Targets</h1>
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<p>
3.3 Beta feature.<br/>

Some radars are able to create NMEA radar sentences from observed targets. <br/>

The ARPA targets, except for the way the data is acquired, are treated exactly as if they were AIS, including timeouts.
</p>

<p>
<img src="../../opencpn/manual/arpa4.jpg" class="media" alt="" />Arpa Target
</p>

<p>
<img src="../../opencpn/manual/arpa3.jpg" class="media" alt="" />Arpa Target
</p>

<p>
<img src="../../opencpn/manual/arpa2.jpg" class="media" alt="" />Arpa Target
</p>

<p>
<img src="../../opencpn/manual/arpa1.jpg" class="media" alt="" />Arpa Target
</p>

<p>
Implementation details: <a href="https://github.com/nohal/OpenCPN/wiki/ARPA-targets-tracking-implementation" class="urlextern" title="https://github.com/nohal/OpenCPN/wiki/ARPA-targets-tracking-implementation" rel="nofollow">https://github.com/nohal/OpenCPN/wiki/ARPA-targets-tracking-implementation</a><br/>

Discussion: <a href="http://www.cruisersforum.com/forums/f134/radar-nmea-messages-104048.html#post1239386" class="urlextern" title="http://www.cruisersforum.com/forums/f134/radar-nmea-messages-104048.html#post1239386" rel="nofollow">http://www.cruisersforum.com/forums/f134/radar-nmea-messages-104048.html#post1239386</a>
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